PSA is currently showing Lower Build Kits in stock. Get them while they still have some.
http://palmettostatearmory.com/index.php/psa-str-lower-build-kit.html
http://palmettostatearmory.com/inde...rts/build-kits/psa-acs-l-lower-build-kit.html
http://palmettostatearmory.com/index.php/psa-str-lower-build-kit.html
http://palmettostatearmory.com/inde...rts/build-kits/psa-acs-l-lower-build-kit.html